/ Link to the "First" slice
  - available local variables
    url           : url to the first slice
    current_slice : a slice object for the currently displayed slice
    slice_number  : total number of slices
    remote        : data-remote
span.first
  == link_to_unless current_slice.first?, raw(t 'views.html_slicer.first'), url, :remote => remote
'